Boston manhunt gives CNN highest-rated day since Iraq War

CNN has always thrived during high-interest breaking-news stories. Friday's conclusion of the Boston bombing manhunt was no exception.

The cable news network scored its best overall day across all TV-rating categories since the Iraq War 10 years ago. Among total viewers, it was CNN's top performance since election day 2012, according to Nielsen.

In prime time - with viewers seeking news of the dramatic capture of the second suspect in the Boston Marathon bombing - CNN scored a rare victory over Fox News, with 2.5 million viewers vs. Fox's 1.9 million.